Cooper apologises for her boyfriend, telling the President she knew Jones was going to "say something smart," but she didn't know what.

At least she would go back home with a good story: Obama joked that she would tell her friends and family, "I can't believe Mike, he is such a fool."

"But fortunately, the President was nice about it, so it's alright," Obama says, imagining how Cooper would tell the story.

Obama gets back at Jones after voting, with a hug and a kiss for his fiancée.

"Now, he's really jealous." - US President Barack Obama talking to voter Aia Cooper, after kissing her on the cheek.

"On the cheek, just the cheek -- please, Michelle, don't come after me -- just the cheek!" Cooper told CNN affiliate WLS-TV after voting. She was referring to US First Lady Michelle Obama.​

Obama was in Chicago on Sunday and Monday campaigning for Governor Pat Quinn, who is facing a tough battle for re-election.

The president also helped lead the Democratic push for early voting in Illinois,casting his ballot on the first day of early voting near his Chicago home.

Obama and his senior advisers will meet today (Oct 22) with Ron Klain, the new Ebola “czar” charged with coordinating the US response to the Ebola outbreak in West Africa that has ravaged three countries and alarmed Americans.